China Wholesale Yellow Harden Hex Washer Self Drilling Screw

• Material: Carbon Steel
• Type: Hexagon Head
• Groove: Hexagon
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: 10mm-254mm
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, GB, ANSI, BSW, JIS
• Grade: 4.8
• Finish: Galvanized/Hot Dipped Galvanized
• MOQ: 5tons
• Thread Size: M4.2/M4.4/M5.0/M5.3/M6.3
• Example: M4.4: M4.4*16mm/ M4.4*19mm/ M4.4*25mm/ M4.4*30mm/ M4.4*4
• Keyword: Drilling Screw
• Transport Package: Shipping by Sea
• Specification: 10mm-254mm
• Trademark: BOYA
• Origin: Tianjin China
• Production Capacity: 5000tons/Year
• Package Size: 25.00cm * 17.00cm * 15.00cm
• Package Gross Weight: 25.500kg

Product Description

Products details

Standard	GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS etc
Size	st2.9-st6.3or non-standard as request&design
Length	20-220mm
Material	stainless steel,  Carbon steel, alloys steel   etc.
Grade	a2,a4,4.8,6.8,8.8
Surface Treatment	galvanizing
Package	Cartons & bags on pallets
Certification:	ISO 9001:2015 and ISO 14001:2015
Application	mainly used in the steel structure of the color steel tile fixed, can also be used for simple construction of thin plate fixed . It cannot be used for metal-to-metal fixation
Samples	Samples are free.
Non-standards	OEM is available, according to drawing or samples

Products Images 

                                         Standard cross groove
                    Standard hexagon, uniform force,not easy to slip

 

                                               Screw thread
                   The thread has a fastening function, the thread is clear and tidy,
                                  and the section is smooth and flat


                                        Drilling tail
          Threaded teeth can reduce screw-in resistance and crack,
              sharp tail, penetrate as soon as it is penetrated


Package Details 
1); small box packing
2): 25~30kg/carton in bulk, 24~48 cartons/pallet
3): assortment in poly bag or plastic box.
4): as per your request

Application 


Advantages 

--Professional factory for series of DIN/GB/ISO standard fasteners.


--More 25 years experience for non-standard OEM items. 


--Produce and Market one stop service by ourself.


--Stable Quality Raw Material from National Steel Enterprise.


--Advanced production line processing machines.


--Advanced automatic surface treating process plant.


--Professional International Sales Team.


--Professional after-sales service team to follow up global customers requirement.
FAQ
Q: Are you trading company or manufacturer ?

A: We are ISO9001:2015 approved factory.

Q: What's your advantage products range?

A: We have big advantage on producing series of DIN/GB hex bolt,nut,thread rod,foundation bolt,

     expansion anchor bolt,and custom OEM drawing items.

Q: Can we visit your factory, production line?  

A: Sure, warmly welcome to visit our factory, production, warehouse, our team

Q: How long is your delivery time?

A: Generally it is 2-3 days if the goods are in stock. or it is 10-15 days depends on customer quantity.

Q: Do you provide samples? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment.